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Electrical Impedance Computed Tomography Based on a Finite Element Model

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2 Author(s)
Tadakuni Murai ; Department of Electrical Engineering, Toyama University ; Yukio Kagawa

A simulation study of electrical impedance computed tomography is presented. This is an inverse problem. A field is discretized by the finite element method and an iterative approach derived from the sensitivity theorem is examined for leads taken on the field surface. It is shown that the conductivity distribution in the field can be estimated from the impedance data obtained for the body surface leads. Simulation suggests the availability and the limitation for impedance plethysmography application. The finite element model must be chosen properly to provide the unique solution.

Published in:

IEEE Transactions on Biomedical Engineering  (Volume:BME-32 ,  Issue: 3 )